Shadow 2 hammer spring - FTF and trigger pull

ranbur

ranbur

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I purchased a new to me Shadow 2. The previous owner had replaced the hammer and recoil springs with "lighter" versions, no # weights of the springs given.

I shot the gun for the first time today ... shoots awesome ... when it actually hits the primer hard enough to fire. I found it would fire my reloads with CCI primers 90% of the time ... however with Barnaul ammo it would light strike 50% of the time, harder primers I presumed.

Current trigger pull is a really nice 3lb SA but I can't have a gun that won't reliably fire each time I pull the trigger.

I do have the original hammer spring however I'm not wanting to screw up the nice light trigger pull in SA which I believe putting the original back in may do.

Can I just try stretching out the "light" spring that is in the gun now, will this increase the weight buy say pound or two and thus give me a reliable firing gun or is spring replacement the only option?

What is the original spring weight for the Shadow 2 and if I eventually order a new spring how light can I go to still have reliable function?

Thanks
 
change the firing pin to extended and throw in a reduce power firing pin spring.

im running 11lb hammer with the above and run all ammo fine.
 
pulling light the spring may help, Kind of like putting a fire out with a pop can.
Put the original back in, there is more to good trigger pull than the mainspring.
OR
I had a new Jericho with a lite primmer strike, the spring length is the stop on the firing pin, spring a bit too long,or pin a bit too short.
Push your pin ahead and look at how much is sticking out ? not much I bet? The Jericho uses a heavy spring , I clipped 1 or 2 turns off ( forget)and worked 100%
 
Barnaul probably has the hardest primers in existence.
Stock Glocks get light strikes and the stuff is practically unusable in an M&P.
I dont remember the factory weight of the CZ mainspring right now. 14# maybe.
 
Get an extended/long firing pin from sebo weapons or eemantech or other and light firing pin spring

Dont stretch the spring
 
I have reinstalled the original factory spring just to test function, will be giving it a go tomorrow. I'll also have access to a trigger pull gauge so I can test the pull as well. Will let you all know what the outcome is.
 
Did you push the pin ahead to see how much protruding? On my Jericho, it was only about 1mm
But as others have said , hard primers can be part of the problem.
 
After a range outing today I can confirm that with the factory hammer spring the gun functions flawlessly, no F2F's even with the notoriously hard Barnual primers.

SA trigger pull seems to have increased only slightly to 3.2 lbs

Thanks to all that responded
 
ranbur said:
Depending how far I push it can protrude up to 5mm
Click to expand...

yes that will be fine, the main spring should not have all that much effect on trigger , if the trigger is good to start with.
when you have a terrible trigger, heavy mainspring will be more noticeable
 
In my Shadow 2, I've replaced original springs with Eemann Tech competition springs. Good set where all springs works together is: 11lbs main spring, -15% trigger spring and -20% hammer spring
 
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